The SensAlert Model ASI is a gas detector which is available in two main versions, 2-wire and a 3-wire version. Each version can be subdivided into intrinsically safe versions with entity parameters and non- intrinsically safe versions. For all versions, the connections to the sensor head are intrinsically safe. As the connections to the sensor heads are intrinsically safe, this allows the sensor head to be installed either integral to the main enclosure or remotely with a cable up to 300ft. long.
S2X SensAlert ASI gas transmitter
Ex d [ia] IIC T4 Gb
Part Number: S2X-bcde-fg
b = 2(2-wire), 3(3-wire)
c = S(standard), R(w/relay board), H(w/HART board), M(w/Modbus board), T(w/HART & Relay), D(w/Modbus& Relay)
d = M(25mm ports), T(3/4in NPT ports)
e = H(Horizontal Config), V(Vertical config)
f = K(Killark Encl. special application) or A (aluminum enclosure)
g = A(Aluminum Sensor Head, standard), P(PVC Sensor Head), S(S/S Sensor Head)
Specifications - The manufacturer’s specifications are as follow;
Operating Temperature: -20°C to +60°C (or sensor limit)
Relative Humidity: 0 to 90% RH
Supply Voltage: 2-Wire 18-30Vdc, 50mA, 1 W maximum
3-wire 12-30Vdc, 500mA 6 watts max
Measurement Signal: 4-20mA
S2S SensAlert ASI gas transmitter
Ex ia IIC T4
Part Number: S2S-bcde-fg
b = 2(2-wire), 3(3-wire)
c = S(standard),
d = M(25mm ports), T(3/4in NPT ports)
e = H(Horizontal Config), V(Vertical config)
f = A(Aluminum Enclosure), F(Fiberglass Enclosure), K(Killark Encl. special application)
g = A(Aluminum Sensor Head, standard), P(PVC Sensor Head), S(S/S Sensor Head)
Specifications - The manufacturer’s specifications are as follow;
Operating Temperature: -40°C to +85°C (or sensor limit)
Supply Voltage: 2-Wire. Ui = 30Vdc, Ii = 120mA Li = 0, Ci = 0, Pi = 1 W maximum
3 Wire: Ui = 18Vdc, Ii = 600mA, Li = 0, Ci = 0.12uf, Pi = 3.3W maximum
Measurement Signal: 4-20mA
S2S SensAlert ASI gas transmitter
Ex nC [ia] IIC T4 Gc
Part number: S22-bcde-fg,
b = 2(2-wire), 3(3-wire)
c = S(standard), R(w/relay board), H(w/HART board), M(w/Modbus board), T(w/HART & Relay), D(w/Modbus& Relay)
d = M(25mm ports), T(3/4in NPT ports)
e = H(Horizontal Config), V(Vertical config)
f = A(Aluminum Enclosure), F(Fiberglass enclosure), K(Killark Encl. special application)
g = A(Aluminum Sensor Head, standard), P(PVC Sensor Head), S(S/S Sensor Head)
Specifications - The manufacturer’s specifications are as follow;
Operating Temperature: -40°C to +75°C (or Sensor limit)
Relative Humidity: 0 to 90% RH
Supply Voltage: 2-Wire 18-30Vdc, 50mA, 1W maximum
3-wire 12-30Vdc, 500mA, 6W maximum
Measurement Signal:4-20mA
823-****-** Gas Detection Sensors
Ex d ia IICGb(Combustible Sensor Interfaces)
Ex iaIIC (Toxic and Oxygen Sensor Interfaces)
Approved Sensors
Sensor Number / Gas(see Note for ambient temperature range) / Range / Accuracy / Response Time (T90)
823-0202-22 FM / Chlorine / 0-5 PPM / ±0.5 PPM / 46 seconds
823-0202-21 FM / 0-10 PPM
823-0239-42 / Chlorine Dioxide4 / 0-5 PPM / ±10 % of applied concentration / 35 seconds
823-0239-41 / 0-1 PPM / ±10 % of applied concentration / 94 seconds
823-0221-21 / Nitrogen Dioxide4 / 0-10 PPM / ±10 % of applied concentration / 30 seconds
823-0253-21 / Methyl Alchohol4 / 0-500 PPM / ±10 % of applied concentration / 41 seconds
823-0245-21 / Ethylene Oxide2 / 0-10 PPM / ±10 % of applied concentration / 53 seconds
823-0251-72 / Isobutylene (PID sensor)5 / 0-200 PPM / ±10 % of applied concentration / 22 seconds
823-0251-71 / 0-20 PPM / ±10 % of applied concentration / 13 seconds
823-0207-21 / Hydrogen Fluroide4 / 0-10 PPM / ±0.6 PPM / 9 seconds
823-0219-23 FM / Carbon Monoxide / 0-100 PPM / ±2 PPM / 21 seconds
823-0219-41 / 13 seconds
823-0219-22 FM / Carbon Monoxide / 0-500 PPM / ±7 PPM / 23 seconds
823-0219-42 / ±4 PPM / 13 seconds
823-0219-43 / 0-1000 PPM / ±10 % of applied concentration / 13 seconds
823-0205-52 / Carbon Dioxide / 0-5 % V / ±10 % of applied concentration / 21 seconds
823-0210-21 FM / Hydrogen / 0-1000 PPM / ±10 % of applied concentration / 70 seconds
823-0206-21 FM / Hydrogen sulfide1 / 0-100 PPM / ±3 PPM / 15 seconds
823-0206-22 FM / 0-50 PPM / ±3 PPM / 14 seconds
823-0206-23 / Hydrogen sulfide / 0-10 PPM / ±0.5 PPM / 20 seconds
823-0203-21 / Hydrogen Cyanide / 0-20 PPM / ±0.4 PPM / 35 seconds
823-0207-22 / Hydrogen Fluoride / 0-20 PPM / ±0.8 PPM / 17 seconds
823-0201-21-FM / Ammonia / 0-100P PM / ±2 PPM / 40 seconds
823-0201-22-FM / Nitrogen Hydroxide / 0-50 PPM / ±1 PPM / 67 seconds
823-0201-41 / 0-300 PPM / ±10 % of applied concentration / 49 seconds
823-0201-42 / 0-500 PPM / ±5 PPM / 35 seconds
823-0218-22 FM / Sulphur dioxide / 0-10 PPM, / ±1 PPM / 52 seconds
823-0218-21 FM / 0-20 PPM
823-0208-21 FM / Hydrogen-Chloride / 0-10 PPM / ±0.5 PPM / 59 seconds
823-0208-22 FM / 0-20 PPM / ±0.5 PPM / 27 seconds
823-0208-41 / 0-100 PPM / ±2 PPM / 39 seconds
823-0222-21 / Bromine / 0-10 PPM / ±0.3 PPM / 19 seconds
823-0214-21 / Silane² / 0-10 PPM / ±0.2 PPM / 31 seconds
823-0212-21 / Arsine² / 0-1 PPM / ±0.02 PPM / 11 seconds
823-0240-21 FM / Oxygen / 0-21 % O2 / ±1% O2 / 21 seconds
823-0240-22 / 14 seconds
823-0211-51 FM (IR) / Methane³ / 0-100 % LEL / ±3 % of full-scale gas concentration or ±10 % of applied gas concentration / 6 seconds
823-0211-31 (CAT)
823-0211-51 FM (IR) / Propane³ / 0-100 % LEL / ±3 % of full-scale gas concentration or ±10 % of applied gas concentration / 6 seconds
823-0211-31(CAT)
823-0211-32 / Hydrogen2 / 0-100 % LEL / ±3 % of full-scale gas concentration or ±10 % of applied gas concentration / 6 seconds
Note:
Ambient Temperature range: -20°C to +50°C
1-40°C to +50°C
2 -20°C to +40°C
3 -40°C to +75°C
4 -20°C to +40°C
5 0°C to +40°C