00236 Simpson, 00236 Datasheet - Page 17

• Manufacturer Part Number: 00236
• Description: LEAD SET, CROCODILE, BAN, TS-111
• Manufacturer: Simpson

Specifications of 00236

• Rohs Compliant: NO
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Simpson’s high precision Model 444 Micro-Ohmmeter measures resistance from 1
micro-ohm to 20 ohms. It measures using an extremely small test voltage (100
microvolt maximum) and a four wire measurement technique. The resistance
reading is indicated on a 4- 1/2 digit LCD display using one of two measuring
modes: An automatic AC measurement mode or a manual DC measurement mode.
By limiting the test voltage of the Model 444 to only 100 micro volts the
instrument will not "punch through" contamination or corrosion. An audible tone
can be used to indicate resistance values below any selected reading. The Model
444 is powered by a 120 AC source or, from self-contained rechargeable Ni-Cad
batteries for field use.
Specifications
Accuracy:
Alarm: Resistance below set point activates audible beeper and display annunciator.
Resistance above set point activates display annunciator.
Set point Adjustment: Front Panel Knob
Accuracy:
Maximum Test Voltage: 100 V peak
Measurement Techniques: (AC) Pulse of 40 Hertz Square Wave and DC Switchable
Polarity
Display: 19,999 count LCD with 0.5" digits and "AC," "DC" and "
Conversion rate: reading 2 per second
Test Leads: BNC to dual Kelvin clip (2 leads) RG-58
Operating Voltage: 120VAC
Operating Temperature Range: 0° to 50°C
Storage Temperature Range: -40° to +60°C
Ordering Information
• 20,000 Count 4
• 2 Measurement Methods: AC Pulse and DC Polarity Switching
• Punch-Through Prevention by 100 V Max. Test Voltage
• User-Adjustable, Low-Resistance Alarm
• AC Test Mode Cancels Offset Voltages and Thermocouple Effects
• Includes Ni-Cad Battery for Field Use and Test Leads
Measures from 1 Micro-Ohm to 20 Ohms
MICRO-OHMMETER
444 Micro-Ohmmeter, 120V
(0.05% of input
200m
Range
20m
20
2
(0.05% of input
(2% of input +150 counts)
15 counts) AC mode
1
/
2
-Digit LCD
600 counts) DC mode
Resolution
10%, 3VA typical
100
10
1
1m
Catalog No.
12681
Maximum Test Current
ACCESSORIES
Standard Test Lead Set
Kelvin Test Probe Set
" annunciators
500 A
50 A
5mA
5
444 Low Voltage Micro-Ohmmeter
15
Specifications (Continued)
Relative Humidity: 90% maximum up to 35°C,
70% maximum up to +50°C (non-condensing)
Temperature Coefficient: 0.1 times the applicable accuracy specification per
°C (0° to 18°C and 28° to 50°C)
Battery Voltage Effect: Plus or Minus (0.15% of input); Fully charged to "B"
annunciator displayed
Battery Life: 8 hours typical
Rated Circuit-To-Ground Voltage: 30V (RMS)
Dimensions: 2.7" x 8.4" x 9.0" (68 x 213 x 228 mm) nominal
Weight: Approximately 3 Ibs.
Catalog No.
00827
02151
ACCESSORIES
Case, Molded Plastic
Catalog No.
45029