Mettler Toledo PS6L Specifications Page 67

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METTLER TOLEDO PS Shipping Scale: Technical Manual
Status Byte
Bit No. Bit Description
6 1 = New status data available.
0 = Host has read data.
5 Bit is always a 0.
4 1 = ROM test failed.
0 = ROM test passed.
3 1 = RAM test failed.
0 = RAM test passed.
2 Bit is always a 0.
1 1 = Calibration Required.
0 = Calibration Data OK
0 1 = EEPROM test failed
0 = EEPROM test passed.
Calibrate Using Host
Interface
The PS shipping scale can be calibrated using the host interface. The command to
initiate the calibration sequence is available in the METTLER TOLEDO command set.
Calibration is based on the current scale configuration for units and capacity/increment.
These can be changed (through the keypad or the host interface) before calibrating the
scale through the host interface.
To calibrate using the host interface:
1. Remove the platter, break the legal-for-trade seal (if present), and remove the sub-
platter to give access to the PCB.
2. Remove the calibration jumper (W1). Refer to the calibration diagram in Chapter 4
of this manual. DO NOT ENTER SETUP MODE. The PS does not respond to host
commands in calibration mode.
3. Send the command C to initiate calibration sequence. The scale responds
<STX>CALIBRATE?<CR><LF>.
4. Send the command Y to continue with the calibration sequence, or send the
command N to abort the sequence. The scale responds
<STX>UNLOAD SCALE- Y?<CR><LF>.
Note: The weight value and weight
units used in calibratin
g
the scale can
be set through the Host command “S”
as described in the next section.
5. Remove any w
eight on the platter and send the command Y to continue. A stable
zero reading is taken, then the scale responds
<STX> ADD (Weight Value) (Weight Units) Y? <CR><LF>
(Weight Value) = weight amount (two or three digit number) to add to scale
(Weight Unit ) = LB or KG
A-6 (08/09)
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