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Model 187 & 189
Users Manual
7-2
Physical Specifications
Display (LCD) Digital: 50000/5000 counts primary display,
5000 counts secondary display;
updates 4/second.
Analog: 51 segments, updates 40/second.
Operating Temperature − 20 °C to + 55 °C
Storage Temperature − 40 °C to + 60 °C
Temperature Coefficient 0.05 x (specified accuracy) / °C (<18 °C or >28 °C)
Relative Humidity 0 % to 90 % (0 °C to 35 °C)
0 % to 70 % (35 °C to 55 °C)
Altitude Operating: 0-2000 meters per EN61010 CAT III, 1000 V; CAT IV, 600 V
0-3000 meters per EN61010 CAT II, 1000 V; EN61010 CAT III, 600 V;
CAT IV, 300 V
Storage: 10000 meters
Battery Type 4 AA Alkaline, NEDA 15A or LR6
Battery Life 72 Hours typical (with backlight off)
Shock Vibration Per MIL-T-PRF 28800 for Class II instruments
Electromagnetic Compatibility
(EMC)
Susceptibility and Emissions: Commercial Limits per EN61326-1
Size 10.0 cm x 20.3 cm x 5.0 cm (3.94 in x 8.00 in x 1.97 in)
(Not Including Accessory Mount)
Weight 545 grams (1.2 lbs.)
Warranty Lifetime
Calibration Interval 1 year