Description
Keithley 177 Microvolt DMM Digital Multimeter Digital Output For Parts
The Keithley 177 is a high-resolution benchtop digital multimeter designed for precision low-level DC and AC voltage measurements, with resolution down to the microvolt range. This example has the Digital Output option installed — a rear-panel parallel digital interface that allows the meter's readings to be fed directly to external data logging or recording equipment, a feature that made the 177 popular in automated test setups. This unit does not power on and is being sold strictly as-is for parts or repair.
Specifications & What's Included
- Make / Model: Keithley 177 Microvolt DMM
- Type: Benchtop Digital Multimeter (DMM)
- Display: 7-segment red LED numeric readout
- Measured functions: DC voltage, AC voltage, resistance, DC current (per front-panel function selector)
- DC voltage ranges: 20 mV, 200 mV, 2 V, 20 V (full-scale)
- Input impedance: 10 MΩ
- Accuracy (DC): 0.04% Rdg + 2D (20 mV range); 0.04% Rdg + 1D (200 mV range); 0.03% Rdg + 1D (2 V range) — per condensed spec label on unit
- Max input: 1200 V momentary
- Front panel: Zero trim control, ON/OFF switch, function selector buttons, range selector buttons, red banana input jacks
- Digital Output option: Installed — rear-panel parallel digital output connector present (labeledCondition: For Parts or Not Working
This Keithley 177 Microvolt DMM Digital Multimeter does not power on and is being sold AS-IS for parts or repair. No further testing has been performed, and no functionality is guaranteed. The unit includes the Digital Output option (the rear-panel parallel output connector is installed, as noted by the yellow label visible on the back). Cosmetically the beige enclosure shows age-related yellowing and a few stickers, consistent with a vintage lab instrument. Please view our full photo set and contact us if you have any questions.
Warranty Information
We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information
Brand: |
Keithley |
Model: |
177 |
MPN: |
177 |
Type: |
Benchtop Digital Multimeter (DMM) |
SKU: |
24641 |
Seller Notes: |
Unit only — power cord visible in photos; Digital Output option installed. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Benchtop |
Measurement Type: |
DC Voltage, AC Voltage, Resistance, Current |
Voltage Range: |
20mV, 200mV, 2V, 20V (DC); AC ranges also |
Minimum Measurable Voltage: |
20mV full scale (microvolt resolution) |
Input Impedance: |
10 MΩ |
Accuracy: |
0.04% Rdg + 2D (20mV range); 0.03% Rdg + 1D (2V range) |
Max Input: |
1200V Momentary |
Display Type: |
7-segment LED numeric display |
Digital Output: |
Installed (rear-panel parallel digital output option) |
Power Source: |
Line (AC mains) or Battery (Model 1788 battery pack) |
Battery Operation: |
6 hours after 14-hour charge with Model 1788 field battery pack |
Compatible With: |
Keithley 1788 Battery Pack |
Features: |
Zero, ON/OFF switch; function and range selector switches |
Condition Notes: |
This Keithley 177 Microvolt DMM does not power on and is sold AS-IS for parts or repair. Digital Output option is installed. No functionality guaranteed. Please view photos and contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
