Super System H20911009 Installation Manual

Hydrogen Sensor (P/N 20624) Operations Manual

OPERATIONS MANUAL

HYDROGEN SENSOR

(PART NUMBER 20624)

Please read, understand, and follow these instructions before operating this equipment. Super Systems Inc. is not

responsible for damages incurred due to a failure to comply with these instructions. If at any time there are questions

regarding the proper use of this device, please contact us at [phone] for assistance.

Super Systems Inc.

7205 Edington Drive

Cincinnati, OH 45249, USA

Tel. [phone]

Fax [phone]

Manual #4583A Hydrogen Sensor Operations Manual Page #1 of 10

Hydrogen Sensor (P/N 20624) Operations Manual

Description
This sensor is designed to accurately measure Hydrogen through thermal conductivity
technology. It is capable of providing additional computations based on the Hydrogen
measurement, and it has multiple methods of digital and analog communications capabilities.

Features

• Measures H2 from 0 to 100% with 0.01% resolution

• Calculates NH

, DA, and Kn for nitrider applications

3

• Two isolated 4 to 20ma analog outputs

• One RS-232 port with Modbus RTU or a simple ASCII protocol

• One RS485 port with Modbus RTU protocol

• Wide power supply input range (9 to 30VDC)

• Small physical size

Specifications

• Hydrogen measurement:
Range: 0 to 100%
Accuracy: +/- 0.01%
Repeatability: +/- 0.01%
Resolution: +/- 0.01%

• Calculated Variables for simple nitrider applications:
%NH3 0 to 100%
%DA (dissociated ammonia) 0 to 100%
Kn nitriding potential

• Analog Outputs:
Two 4-20mA outputs common supply and isolated from other electronics
Output variables: %H2, %NH3, %DA, and Kn on either output
Adjustable range of PV: zero and span
Resolution: 0.005 mA
Accuracy: +/- 0.01% of range
Linearity: +/- 0.01%
Minimum load resistance: 0 Ohms
Maximum load resistance: 500 Ohms

• Sample flow rate:

1.5-2 cfh

• RS-232 Serial Communications:
Protocols: Modbus RTU or a simple ASCII
Baud rates: 9600, 19200, or 38400
Format: 8 bits No parity, 1 stop bit, No handshaking
Connection: DB-9P

• RS-485 Serial Communications:
Protocol: Modbus RTU
Baud rates: 9600, 19200, or 38400.
Format: 8 bits No parity, 1 stop bit, No handshaking

Manual #4583A Hydrogen Sensor Operations Manual Page #2 of 10

• Power requirement:
9 to 30 volts DC @ 2 watts

• Temperature and Humidity
Electronics Operating: 0 to 50 °C, RH 0 to 90% non-condensing
Sample gas: 0 to 70 °C, RH 0 to 90% non-condensing
Storage: -20 to 70 °C, RH 0 to 90% non-condensing

• Dimensions:
See figure 1

• Weight:
350g

• Material:
Stainless steel sensor housing

Figure 1

Hydrogen Sensor (P/N 20624) Operations Manual

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