User Manual

24 GOSSEN METRAWATT GMBH
9 METRATESTER

5 Infrared Interface
Measuring Range
Switch code:
0011 0001B=250 V
0011 0010B=16 A
0011 0011B=empty
0011 0100B=I-diff
0011 0101B=2 mA
0011 0110B=empty
0011 0111B=I-EA
0011 1000B=20 MΩ
0011 0000B=20 Ω
ASCII characters
Device Name
ASCII characters
Meas. Value (amount)
overflow=9999
Line Feed=0Ah
Check Sum
via “Irda error“ [and],
1111 0000B plus 30 hex
Message
Type infrared interface
(in compliance with IRDA per HP Design Guide)
Format 9600 baud, 1 start bit, 8 data bits, 1 stop bit,
no parity, no xon/xoff, no handshake
Content device ID, measured value, measuring range,
alarm messages: error per SK I and SK II
Transmission Speed 2.5 times per second, corresponds to measuring speed
Alarm Messages:
30h = error-free
31h = protection class I error *
32h = protection class II error *
“IRDA” Message
Mtr51234SDCCc
r
L
F
Check Sum
via “Irda error” [and],
0000 1111B plus 30 hex
Carriage Return=0Dh
* For the differentiation of errors which cannot be assigned to various protection classes,
31h is the more severe error!