Instruction manual

SM425 INSTRUCTION MANUAL 2.0 SPECIFICATIONS
6 42500001 REV A
±1% Maximum value of range setting; from 0 to 5 vol% O
2
to 0 to 25 vol% O
2
range
(Sample gas pressure: within ±4.9 kPa)
±3% Maximum value of range setting; from 0 to 25 vol% O
2
to 0 to 50 vol% O
2
range
(Sample gas pressure: within ±0.49 kPa)
±5% Maximum value of range setting; from 0 to 50 vol% O
2
to 0 to 100 vol% O
2
range (Sample
gas pressure: within ±0.49 kPa)
Drift:
(Excluding the first two weeks in use and excluding the case where the reference air flow is
natural convection.)
Both zero and span ±2% Maximum value of range setting/month
Response Time:
Response of 90% within 5 seconds. (Measured from time when gas is introduced from calibration
gas inlet to time when analog output starts changing in response.)
2.2 General-use Separate-type Detector and Related
Equipment
General-use separate-type detector SM425P can be used in combination with the probe protector
ZO21R-L (see Section 1.4.2).
2.2.1 SM425P General-use Separate-type Detector
Sample Gas Temperature:
0 to 700°C (Probe only)
It is necessary to mount the cell using Inconel cell-bolts when the temperature is 600°C or
greater.
700 to 1400°C (with High Temperature Probe Adapter)
For high-temperature sample gas, apply 0.15 m length probe and High temperature Probe
Adapter ZO21P-H.
Sample Gas Pressure:
-5 to +250 kPa (When the pressure in the furnace exceeds 3 kPa, it is recommended that you
compensate for this pressure. When the pressure in the furnace exceeds 5 kPa, you must
perform pressure compensation.)
For 0.15m probe, 0.5 to 5kPa.
No pressure fluctuation in the furnace should be allowed.
Note: When the detector is used in conjunction with a check valve and a ZA8F Flow Setting Unit,
the maximum pressure of sample gas is 150 kPa. When used with a check valve and a
SM425CAL Autocalibration Unit, it is 200 kPa. If the pressure of your sample gas exceeds these
limits, consult Teledyne Monitor Labs.
Probe Length:
0.15, 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 3.6, 4.2, 4.8, 5.4 m
Probe Material:
SUS 316 (JIS)
Ambient Temperature:
-20 to +150°C