| Standard specifications | Principle | Thermal conductivity |
|---|
| Components | He, Ar, H2, CH4, CO2 |
| Range | H2: 0–3 .. 100%, 100–90%, 100–80%
He: 0–5 .. 100%, 100–90%, 100–80%
Ar: 0–10 .. 100%, 100–90%, 100–80%
CH4: 0–20 .. 100%, 100–80% |
| Output signal | 4–20 mA DC, 0–1 V DC or 0–10 mV DC, non-isolated output |
| Load resistance | ≤ 550 Ω (at 4–20 mA DC output) |
| Output resistance | 100 kΩ (at 0–1 V DC or 0–10 mV DC) |
| Display | LCD with backlight |
| Display | 4-digit |
| Output hold | For both manual and automatic calibrations, the output value immediately before calibration can be performed |
| Power supply and consumption | 100–240 V AC, 50/60 Hz, approx. 50 VA |
| Ambient temperature and humidity | -5 to 45°C, 90%RH or less (non-condensing) |
| Mounting | Panel mount |
| Dimensions (H x W x D) in mm | 240 × 192 × 213 |
| Weight | Approx. 5kg |
| Enclosure | Steel enclosure, indoor use |
| Gas inlet/outlet | Rc 1/4 or NPT 1/4 (whichever is specified) |
| Purge gas flow rate | Approx. 1 L/min (as required) |
| Performance | Repeatability | ±1%FS |
|---|
| Drift | Zero point: ≤ ±2% FS per week (H2 measurement)
Span point: ≤ ±2% FS per week (H2 measurement) |
| Speed of response (90% response) | Standard: ≤ 60 s (at 0.4 L/min flow rate)
High speed: ≤ 10 s (at 1 L/min flow rate)
only allowed for H2 measurement (gas reference N2) |
| Gas conditions | Temperature | 0–50°C |
|---|
| Gas flow rate | Constant at 0.4 ±0.05 L/min |
| Dust | ≤ 100 μg/Nm3 at particle size of 0.3 μm or smaller |
| Pressure | ≤ 10 kPa |
| Mist, corrosive gas | Inadmissible |
| Humidity | Below saturation at 2°C |
Optional Specifications
| Relay Contact Output | 5 SPST relay contact outputs
Relay contact rating: 220V AC/2A (resistive load)
Isolated with relay between contacts and between contacts and internal circuit.
Max. 5 functions can be selected from those listed below.
(1) Zero side solenoid valve drive output for auto calibration
(2) Span side solenoid valve drive output for auto calibration
(3) Suction pump OFF output at auto calibration
(4) Upper limit concentration alarm output (1 point)
(5) Lower limit concentration alarm output (1 point)
(6) Upper/lower limit concentration alarm output (1 point)
(7) Upper limit (1 point) and lower limit (1 point) concentration alarm output (total 2 points)
(8) 2-step upper limit concentration alarm output (1 point in each step) (total 2 points)
(9) 2-step lower limit concentration alarm output (1 point in each step) (total 2 points)
(10) Analyzer error or auto calibration error alarm output
(11) Calibrating status output
(12) Range identification output (only for 2-range type)
|
|---|
| Contact input | 3 voltage-free contact inputs
ON: 0 V, OFF: 5 V DC, ON current: 5 mA
Isolated with photocoupler between inputs and internal circuit.
Non-isolated between contact inputs.
The following actions are available:
(1) Remote hold of measured value output
(2) Remote range change (only with analyzer 2 ranges)
(3) Remote start of automatic calibration
|
| Interference gas measured value input | 1–5 V DC analog input for H2 analyzer interference correction CO2 or CH4 value measured by an external gas analyzer
Adjustment at the Fuji Electric factory is required. We will check the details of the gas to be measured upon receiving an order. |
| Automatic calibration | Zero and span calibrations are performed automatically at predetermined intervals. Externally installed solenoid valves are actuated to flow calibration gas sequentially. |
| Communication | RS-232C (9-pin D-sub output)
Half duplex, asynchronous
MODBUS protocol, communication speed 9600 bps
Contents communication: Reading/writing of measured concentration values and various set values and output of device status |
