Adjustment - Nagano Keiki KH15 Series User Manual

Current output can be checked with a check terminal (+CH) without
removing any wiring. Use an ammeter with an internal resistance of 10Ω
or less during checking.
■12.2 Adjustment
Remove the terminal box lid to adjust the output of this product. When removing the lid, you will see
the plate as shown in Figure 8-7 below. The characters "Z" and "S" printed on the plate are trimmers
for zero and span adjustment respectively.
Span trimmer
Zero trimmer
KH15-J-
(current output)
 Avoid electrostatic charge.
 To clean the appearance of the product, use a water-soaked soft
cloth. Do not use thinner and benzine that cause degradation or
failures.
Plate
□□
< Figure 12-1 >
 Do not perform an adjustment when the surface of the product is
wet. Moisture getting inside the product will cause a failure.
 Never cause short circuits with a driver (be sure to use a resin or
ceramic driver).
 After powering on, wait at least 5 minutes for warm-up in an
energizing state before performing an adjustment.
 Care should be taken to prevent excessive load on trimmers.
Otherwise, trimmers (circuit parts) may be damaged.
 For adjustment, use the reference pressure gauge and
measuring instrument with traceability ensured.
CAUTION
Zero trimmer
CAUTION
20
Span trimmer
Plate
□□
KH15-K-
(current output)
Y-KH15-007A Rev.3