Technical data

METTLER TOLEDO JAGXTREME Terminal Technical Manual
(9/00) 2-30
Sample Calculation
1. Refer to the following example of µV per increment calculation for a Model 2158
floor scale installation.
Scale Capacity 5000 lb
Increment Size 0.5 lb
Load Cell Capacity 2500 lb
Number of Cells 4
Cell Output 2 mV/V
Excitation Voltage 15 VDC
2. Use the formula from step 1 to calculate the µV per increment.
0.5 lb × 2 mV / V × 15000
µV per Increment: ———————————— = 1.5 µV/inc.
2500 lb × 4 load cells
3. Divide scale capacity by increment size to determine total number of increments.
5000 lb
—————— = 10,000 total Increments
0.5 lb
4. Check the microvolt build table to see that 1.5 µV per increment build is within the
acceptable range for 10,000 increments. It is, so this is an acceptable build.
Seal the Enclosure -
Weights and Measures
Applications
After setup is complete, most legal-for-trade applications require sealing the enclosure
so modifications cannot be made. If the terminal is not used for legal-for-trade
applications, skip this section. Make sure SW2-1 (setup access) is ON before sealing
the enclosure.
Panel Mount Enclosure
1. Screw one through-hole sealing screw into the hole labeled “CAL” on the rear of the
Controller PCB and two more into the threaded holes directly above, below and to
the left of the “CAL” opening. (Refer to the illustration on the next page.)
2. Tighten the screws and run a wire seal through the holes in the screw heads.
3. Apply the lead seal.
4. Remove the two top screws near the front of the enclosure one at a time and replace
them with special through-hole sealing screws.
5. Screw a third sealing screw into the unused hole adjacent to the right side screw.
6. Run a wire seal through the holes in the heads of the screws.
7. Apply the lead seal.