美国德纳科Dynalco PNT-202 拾取供电 超速跳闸

美国德纳科Dynalco PNT-202 拾取供电 超速跳闸

Download Info:
PNT-202
PNT-202 Instruction Bulletin
PNT-202 Agency Approval
Drawing A8005646 Product Code: PNT-202

拾音器供电超速跳闸：超速/欠速保护，CSA：

一级，一级，A、B、C、D组。
PICKUP POWERED OVERSPEED TRIP: over/under speed protection, CSA:
Cls I, Div 1, Grp A, B, C,D.
PNT-202接收来自（2）个磁性传感器的电源和信号输入，为SPV-200气动电磁阀跳闸提供2个设定点。
The PNT-202 receives power and signal input from (2) magnetic pickups, providing 2 setpoints for tripping SPV-200 Pneumatic Solenoid.

PNT-202
Pickup-Powered, 2 Setpoint
Overspeed Trip

从两个

Dynalco磁性拾音器。不

需要外部交流或直流电源
Derives signal and power from two
Dynalco magnetic pickups. No
external ac or dc power required.

OVERVIEW
When the preset overspeed setpoint is reached, the
PNT-202™ trips the SPV-200™ Solenoid Pneumatic
Valve. The valve opens, latches, bleeds to the
atmosphere, and shuts down the engine if it is
connected to the engine pneumatic control system.
The PNT-202 also effects shutdown when one of the
pickup signals disappears or when an attempt is
made to start with only one operational pickup.
The second setpoint can trip the same valve or a
separate valve. It can be field-programmed as an
underspeed setpoint or as a second overspeed
setpoint or crank disconnect. When set for
underspeed, no inhibit is necessary on start-up as
this setpoint becomes enabled only when the speed
first exceeds the setpoint.
FEATURES

Operates from two (2) Dynalco magnetic
pickups. Single pickup operation is not reliable.

Built-in flashing LED indicates when sufficient
signal amplitude is available to power the
PNT-202.

Auxiliary output drive provided for Dynalco
Controls signal-powered digital tachometers
such as the SPD-100 and SPD-700.


Totally floating and isolated input terminals are
free of grounds.

Insensitive to line noise, spikes, grounding, etc.
since there is no ac or dc connection. Usable in
remote locations where no external power is
available.

Rugged, reliable, highly accurate. Senses pulse
rate only; is insensitive to signal amplitude
variations. Stability of ±1% under all
environmental conditions. Multiturn setpoint
potentiometer permits large speed range
adjustment. Field-programmable for input range
of either 0-1000 Hz or 0-5000 Hz.

Foolproof; no panel controls. A single tell-tale
reset button pops out from the SPV-200 Solenoid
Pneumatic Valve when tripped. Button is pushed
back in to reset. Pneumatic reset is available.

Can drive an optional circuit breaker (in place of
the SPV-200 Valve) for “electrical” shutdown
applications e.g. grounding the ignition.

Built-in test circuit. (1) Removing the jumper
from the two Verify terminals (N and P) lowers
the overspeed trip point 10%, permitting
shutdown testing without overspeeding. (2) This
feature can also be used to set the trip point to
just trip at normal operating speed with the
jumper disconnected. When the jumper is
reinstalled, the overspeed trip is known to be set
10% higher than normal operating speed.

SPECIFICATIONS
Two Setpoints: The second setpoint in the PNT-202
is normally set to trip on underspeed, i.e. to trip as the
setpoint is crossed on decreasing speed. No external
inhibit is necessary on start-up as the underspeed
setpoint becomes enabled only when the speed first
gets above the setpoint (Class C logic: active once
normal).
This setpoint can also be set up as another overspeed
setpoint or crank disconnect (trip as the setpoint is
crossed on increasing speed) by jumpering terminals
K and N. Setpoint outputs can trip two separate SPV-
200 Solenoid Valves or a single valve connected to M
and N if terminals L and M are jumpered.
Trip Points Adjustment Range: 10% to 100% of
input range. Input range is either 0-5000 Hz or, with
terminals H and J jumpered, 0-1000 Hz. Range should
be restricted to 20-100% of full-scale for 1% accuracy,
or 10-100% of full-scale for 2% accuracy. Adjustment
via a high-resolution 25-turn potentiometer accessible
through a covered hole.
Test Verify: Removing the jumper from terminals N
and P lowers the overspeed trip point by 10%.
Required Magnetic Pickups: Dynalco M203 or M204
pickups sensing from a ring gear or other gear with a
diametral pitch of 10 or coarser. Best performance at
low speeds and best start-up response time is obtained
with the narrowest possible pickup-to-gear gap.
Operation with two pickups provides missing signal
protection, i.e. engine shutdown when one of the
signals is missing. Do not operate with one pickup.
Response Time: 150 milliseconds under running
conditions. On start-up from zero speed, trip response
may take up to one second depending on engine ramp
speed and/or pickup-to-gear spacing.
Input Signal Voltage: Minimum pickup signal
amplitude required is 3.5 Vrms (7 volts peak-to-peak).
Any test signal used to replace a pickup should be
current-limited to 30 mA, maximum.
Isolated Circuit: All circuitry is totally floating i.e.
totally isolated and insulated from the case and from
ground.
Operating Environment Temperature: –20oF to
+160oF (–29oC to +71oC).
Trip Point Stability: ±0.01%/ºF/ºC typical; no change
with signal amplitude for signal levels above 2.5 Vrms.
Flashing LED: An integral LED flashes every two
seconds when there is enough energy stored in the
internal dc supply capacitors to trip the solenoid valve
connected to the PNT-202. Since the pickups feed the
supply, the flashing LED indicates that there is sufficient
signal amplitude to operate either unit.
The flashing LED also denotes a ready or armed
condition, and it can also be used to determine the
lowest speed at which the system becomes armed.
The LED does not flash with sustained overspeed or
missing signal since the internal supply capacitors are
discharged and charged repetitively (repetitive pulsing
to the solenoid valve) under such conditions.
SPV-200 Pneumatic Valve Ratings: Input pressure
of 40-100 psig, 20 cfm at 100 psig. Dry, clean instrument
air filtered to 40 microns is required.
Output Drive to Digital Tachs: Conditioned square
wave output at terminals E and F to drive Dynalco selfpowered
digital tachometers, e.g. SPD-100 and
SPD-700. This output is inhibited when there is
insufficient pickup signal amplitude, i.e. less than 3.5
Vrms.
Breaker Drive Capability: The SPV-200 Solenoid
Pneumatic Valve can be replaced with a magnetic
circuit breaker to achieve shutdown by grounding the
ignition or by letting auxiliary breaker contacts drive a
shutdown solenoid. Terminals N(+) and
M(–) or N(+) and L(–) will trip a 200 mA breaker with a
coil resistance of 15 Ω or less. When breaker contacts
are used for shorting the ignition, 50 Ω series limiting
resistors should be used to limit inrush currents.
Weight: PNT-202 1.4 lbs (0.64 kg)
SPV-200 1.8 lbs (0.82 kg)
HOW TO ORDER
SPECIFY:
1. PNT-202 (two setpoints).
2. Range: 0-1000 Hz or 0-5000 Hz.
3. Magnetic pickups: two M204 (2.5 in. of
thread), or two M203 (4 in. of thread).
OPTIONS:
a. SPV-200 Solenoid Pneumatic Valve.
Indicate quantity required.
b. 200 mA Circuit Breaker (p/n 50A3).

美国德纳科Dynalco控制仪表公司简介

美国德纳科Dynalco公司设计和制造高度工程坚固，可靠的，第三方的监测，控制和往复式发动机，蒸汽涡轮机，燃气涡轮机，泵和输送系统的保护认证仪表。我们为一个在石油和天然气，化工/过程，建筑业及越野设备，交通运输，发电，船舶，采矿，水和废水市场的客户和工厂自动化等。Dynalco designs and manufactures highly engineered rugged, reliable, 3rd party certified instumentation for monitoring, control and protection of reciprocating engines, steam turbines, gas turbines, pumps and conveying systems. We serve a variety of customers in the Oil and Gas, Chemical/Process, Contruction and off-road equipment, Transportation, Power Generation, Marine, Mining, Water and Waste Water and Factory Automation Markets. 

Dynalco 1968年创立，有三种产品，以及为石油和天然气工业生产工程解决方案的目标。自那以后的47年里，Dynalco已经成为世界范围内的工业领袖，因其在石油和天然气、化学、电力、海洋和建筑行业使用的高质量的仪器和控制而得到认可。Dynalco was started in 1968, with three products and a goal of producing engineered solutions for the oil and gas industries. In the 47 years since, Dynalco has become a worldwide industry leader, recognized for its high-quality instruments and controls used in the oil & gas, chemical, power, marine and construction industries.

 

- Dynalco Products

MTH-103E Tachometer / Hourmeter / Overspeed Trip 
UM-200 Tachometer / Hourmeter / Monitor 
Catalyst Monitor 
UM-600 Universal MonitorInstruments & Controls for Rotating Equipment in 
Demanding Applications 
Recently Updated Products M928-24 Magnetic Pickup/Speed Sensor 
MTH-103D Tachometer / Hourmeter / Overspeed Trip 
SST-2400H Speed Switch/Transmitter 
SWTD-1000 Speed Switch/Transmitter
LMD-120A Panel Meter 
LMD-120D Panel Meter
DPM-105 Panel Meter 
UM-600 Universal Monitor

Engine Controls & Emissions Controls 
Instruments/Gauges/Meters 
- General Purpose Gauges/Meters 
- Hourmeters 
- Tachometers 
- Temperature Gauges/Meters 
- Universal Scanner Magnetic Pickups/Speed Sensors 
- Active (Powered) 
- Cable Assemblies 
- Extra Long Reach 
- Hazardous Area 
- Intrinsically Safe Barriers 
- Miniature 
- Power Source 
- Standard Power Generation 
Dynalco Speed Switches & Speed Transmitters 
- DIN Rail and DIN Standard Series 
- SST Series

- Dynalco Tachometer转速表

Dynalco Tachometers转速表型号

CRT-9x - Replacement Tachometers;The CRT-9X replaces Caterpillar tachometers: CAT-9X114, CAT-9X116, and CAT-9X117. SPD-100 ; SPD-100L ; SPD-108 ; SPD-108L; MTH-103D; F-16; DS-800; DS-900; SPD-700; SPD-708; LST-100; LST-100L; LST-108; LST-100; LST-108L; DST-2000C; PG-100; TT-1; TT-100；DPM-105，LMD-120A，LMD-120，LMD-120D，G-101。

Dynalco Speed Switch 速度开关型号

SST-2000A；SST-2000H ；SST-2000A/H；SST-2200A；SST-2400A；SST-2200H；SST-2400H；SW-200B；SW-50；PNT-202

DYNALCO SST-2000 Series Speed Switches/ Transmitters Product
SST-2000A Speed Transmitter
SST-2000H Speed Transmitter
SST-2200A Speed Switch/Transmitter
SST-2200H Speed Switch/Transmitter
SST-2400A Speed Switch/Transmitter
SST-2400H Speed Switch/Transmitter

Dynalco Pickup Sensor传感器型号

M104; M202; M208，M101 ，M102 ，M131，M133 ，M142 ，M151 ，M155 ，M168 ，M183 ，M184，M189 ，M343 ，M801 ，M802 ，M928 ，M137 ，M138 ，M143 ，M104，M134 ，M135 ，M139， M140，M180 Magnetic Pickup/Speed Sensor ，M201 ，M202 ，M203 ，M204 Magnetic Pickup Speed Sensor，M205 ，M219 ，M231 ，M233，M318 ，M319 Magnetic Pickup/Speed Sensor，M107 ，M207 ，M208 ，C101-10 ，C910-10 ，C917-10 ，HTM-801； M806 Hall Effect Magnetic Pickup/Speed Sensor ; M951 Hall Effect Magnetic Pickup/Speed Sensor 。 Dynalco temperature indicator温度指示仪型号:TMP-100 ; STM-110-11；STM-110-13 ; STM-110-14 ; TID-110; TMP-900。