Jbus Communication Specifications - Oldham OLCT 80 User Manual

Measure-
Gas type
ment range
(ppm)
Freon R32 1000
Freon R407c 1000
Freon R408a 1000
Ethanol 500
Toluene 500
Isopropanol 500
2-butanone 500
(MEK)
Xylene 500
a) +4°C to +20°C b)
20% to 60% RH 20% to 60% RH
1 bar ± 10% 1 bar ± 10%
6 months maximum 6 months maximum

JBus communication specifications

The OLCT 80 has two JBus communication modes:
■
ASCII mode.
■
Binary mode.
ASCII mode
■
This mode is used if the OLCT 80 is connected via a digital link to an
Oldham central controller type MX 62.
■
Speed: 38400 bauds,1 start bit, 7 bits, even parity, 1 stop bit.
■
450 ms timeout (reading response time is less than 10 ms).
Explosion Intrinsically Temp. % RH Accuracy (ppm) Average
-proof -safe range (°C)
sensor sensor

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-

-20 to +55 20 - 95 +/- 15% (from 20-
-25°C to +60°C (c) +4°C to +20°C
20% to 60% RH
1 bar ± 10%
3 months maximum
13 – Technical Specifications
Resp. time
service life T50/T90 (s)
(months)
40 25/90
70% PE)
40 25/90
70% PE)
40 25/90
70% PE)
40 25/60
70% PE)
40 25/60
70% PE)
40 25/60
70% PE)
40 25/60
70% PE)
40 25/60
70% PE)
(d) -20°C to +50°C
20% to 60% RH
1 bar ± 10%
6 months maximum
Storage
conditions
and time
(d)
(d)
(d)
(d)
(d)
(d)
(d)
(d)
99