TB 9-6625-195-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Digital Multimeter, Fluke, Model 88 Automotive Meter. The manufacturer's
manual was used as the prime data source in compiling these instructions. The equipment
being calibrated will be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. Variations among models are described in text and tables.
b. Time and Technique. The time required for this calibration is approximately 1
hour, using the dc and low frequency technique.
2. Forms, Records, and Reports. Forms, records, and reports required for calibration
personnel at all levels are prescribed by TB 750-25.
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Table 1. Calibration Description.
Test instrument parameters
Performance specifications
Dc voltage:
Model 88
Range:
0 to 1000 V dc
Range:
400 mV through 400 V
Accuracy:
(0.15% of rdg +2 counts)
Range:
1000 V
Accuracy:
(0.3% of rdg +2 counts)
Model 88 (CAT II)
Range:
0 to 300 V dc
Range:
400 mV through 300 V
Accuracy:
(0.15% of rdg +2 counts)
Range:
300 V
Accuracy:
(0.3% of rdg +2 counts)
AC voltage:
Model 88
Range:
0-1000 V ac
Frequency Range: 45 Hz to 1 kHz
Range:
400 mV
Accuracy: (1.5% of rdg +10 counts)
Range:
4 through 400 V
Accuracy: (1.5% of rdg +5 counts)
Range:
1000 V
Accuracy: (2.5% of rdg +5 counts)
Frequency Range: > 1 kHz to 5 kHz
Range:
400 mV
Accuracy: (1.9% of rdg +10 counts)
Range:
4 to 400 V
Accuracy: (1.9% of rdg +5 counts)
Range:
1000 V
Accuracy: (2.5% of rdg +5 counts)