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Model TP-624C
(order by part number 966-014520-100)
Solid State MOS

Sensor Type
Solid State Metal Oxide Semiconductor
Measurement Range
0-20 ppm, 0-50 ppm, 0-100 ppm
Hydrogen Sulfide
±10% of reading or ±2 ppm (greater of)
Response/Clearing Time
T50 <30 seconds / T80 <60 seconds
Operating Temperature Range
-40°F to +167°F; -40°C to +75°C
Operating Humidity Range
15-100% RH non-condensing
Linear 4-20 mA DC
RS-485 Modbus™
3 Relays (alarm 1, alarm 2, & fault)
Contacts rated 5 amps
Input Voltage
22.5-28 VDC
Power Consumption
<3 watts @ 24 VDC
Electrical Classification
Explosion proof
Class I, Division 1, Groups B, C, D
Safety Approvals
CSA and UL Approved
Sensor Life/Warranty
Sensor: 10 year conditional warranty
Transmitter: 2 year warranty


+ Compatible with PLCs, SCADA, DCS, or a variety of host controllers
+ via 4-20 mA, and/or RS-485, and/or alarm relays
+ Sensor status and parameters accessible via RS-485 (Modbus™)
+ Menu programmable relays standard (two alarms plus fault)
+ Simple menu driven calibration - takes less than 3 minutes
+ Backlit LCD and LED indicators for FAULT and CAL status
+ Plug-in field-replaceable transmitter
+ Response Characteristics similar to that of electrochemical sensors
+ T-50 <30 sec., T-80 <60 sec.
VERY wide operating temperature range:
-40°F to +175°F
+ 10 year conditional sensor warranty
+ Direct response constant temperature control
+ Withstands exposure to high range concentrations of H2S and other acid gases
+ Impervious to high moisture environments in both powered and non-powered
“RS-485 Addressable”
Detcon Model TP-624C Hydrogen Sulfide
sensors are non-intrusive “Smart” sensors
designed to detect and monitor H2S in air
over the range of 0-100 ppm. The sensor assembly consists of a proprietary
solid state metal oxide semiconductor sensor in a stainless steel housing, a
plug-in control transmitter circuit, a base connector board and an explosion
proof enclosure.
Intelligent Sensor
ISO 9001: 2000
C e r t i f i e d