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LPT-A-VLT Ammonia Vent Line Transmitter

CETCII Critical Instrument

Category : Specialty Products

Kondisi : NEW

View : 129

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Hotline 1 : 0812-8927-0182
Hotline 2 : 02122278639 (Office Hour)
Whatsapp : 0812-9407-7633

The LPT-A-VLT Ammonia Vent Line Transmitter is designed for continuous monitoring of ammonia levels in the vent line of refrigeration systems. More specifically, it is designed for the detection of equipment failure in ammonia plant vent stack applications. Using the 3/4” cast steel coupler, it can be mounted indoors on the ammonia vent relief stack above the pressure relief valve or mounted outside on the relief header above the roofline. It can be configured to alarm at user specified concentration levels and send an analog signal to the controller or PLC to activate the emergency ventilation system or shut down the equipment depending on the level of alarm. It offers 3-wire VDC or 4-wire VAC power, jumper selectable 4 - 20 mA or 0 - 10 VDC analog output, a standard dry contact relay (2 amps @ 30 volts SPDT), automatic thermal resetting fuse, temperature compensation, back lit LCD display and audible alarm, all in a RoHS compliant package. Comes standard with a water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, secured door. Calibration and other maintenance procedures are simple and easily performed in the field. NOTE: This device is not designed to monitor ammonia in applications requiring human health safety levels detection.

Key Features

  • Single channel, internal catalytic Ammonia sensor
  • Linear 4 - 20 mA analog or 0 - 10 volt output signal
  • LCD display
  • One 2A SPDT dry contact relay
  • Internal audible alarm
  • 3-wire VDC or 4-wire VAC power
  • 24 volt DC or AC power (nominal)
  • IP54 rated, water / dust tight, corrosion resistant enclosure with splash guard installed

Specifications

Target Gas

Gas Sensor

Ammonia (NH3), measurement range 0 - 3.00% volume

Sensor

Type

Catalytic NH3

Response Time T90

< 30 seconds

Mechanical

Enclosure

ABS / Polycarbonate, corrosion resistant

Copper coated interior to reduce RF interference

IP54 rated

Weight

825 g / 29 oz

Size

127 x 127 x 61 mm / 5.0 x 5.0 x 2.4 inches

Coupler

19.5 mm / 3/4 inch NPT, cast steel

Sensor Assembly length (including coupler)

98.5 mm / 3.875 inches

User Interface

Display

Graphic LCD, grey border

Magnetic switches to initiate calibration without opening the enclosure

Input/Output

Output

Linear 4 - 20 mA analog

Maximum 216 ohm load (wiring plus termination resistor) @ 12 VDC

Maximum 316 ohm load (wiring plus termination resistor) @ 12 VAC

Voltage 0 - 10 volt

Minimum 1k ohm load

Relay

1 SPDT dry contact, rated 30 Volts, 2 Amps max

Audible Alarm

Standard internal buzzer

Electrical

Power Requirement

3-wire mode: 16-30 VDC, 3 W, Class 2

4-wire mode: 12-27 VAC, 50-60 Hz, 3 VA, Class 2

Current Draw

125 mA @ 24VDC (max)

Wiring

VDC (or ground referenced AC): 3-conductor 16 AWG stranded, shielded

VAC: 4-conductor 16 AWG stranded, shielded

Fuses

Thermal, resetting

Environmental

Operating Temperature

-20°C to 40°C (-4°F to 104°F)

Operating Humidity

0 - 80% RH non-condensing

Certifications

Conforms to

CSA-C22.2 No. 205-12, UL508 (Edition 17):2007

EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010

FCC. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

RoHS compliant circuit boards