Omega PCL120 Handheld Precision Current Loop Calibrator FOR REPAIR

Description

Omega PCL120 Handheld Precision Current Loop Calibrator FOR REPAIR, powers on but sticker said "out of calibration" and "Erratic", missing knob, sold as-is
1-1 bin a
here is info from Omega site:
With an accuracy of 0.015% of reading, 0.001 mA resolution, and 1 microamp step resolution, the PCL120 has the highest precision in its class. Other features that make the PCL120 stand out include a '% error' function, which eliminates manual error calculation and allows the display of actual versus ideal error at any calibration point. The PCL120 can simulate, power, and measure 2-wire transmitters. Its automatic step and ramp functions enable remote calibration of 4 to 20 mA devices.
The PCL120 has many innovative, powerful features that make calibration easy. A few clearly marked keys give the user access to the full functionality of the unit. The STEP and RAMP output modes automate either a discrete 4-8-12-16-20-16-12-8-4 mA stair step output or 2 speeds of a linear 4-20-4 mA ramp output. Pressing the AUTO key (1) activates this time-saving function. To further aid remote calibration, the PCL120 features a minimum/maximum value recall function. In the measure mode, holding the AUTO(/MAX) key (1) gives a direct readout of the maximum value, while holding the 25%(/MIN) key (4) gives a direct readout of the minimum value. Holding the % ERROR key (2) while turning the large knob provides instant feedback on the difference between the ideal and actual current values required for a given device response. This tells the user whether the device is within its accuracy range. No further calculations are necessary. A LOOP POWER key (3) provides instant 24 Vdc loop power output. The 25% (4) key provides instant outputs of 4, 8, 12, 16, and 20 mA loop current, with increments occurring each time the key is pushed.
SPECIFICATIONS (25°C Unless Otherwise Noted)
Input
Current Range: 0 to 24 mA; -25 to 125%
Voltage (Reading): 0 to 28 Vdc
Input Protection: Fuseless up to 250 Vac
Output
Source/Simulate Range: 0 to 24 mA; -25 to 125%
Drive Capability:
Without Hart
TM
: 1200 O
With Hart
TM
: 950 O
Loop Supply Voltage: 24 Vdc
Range Select: Decade; incremental in 0.001 mA steps
Resolution: 1 µA
Accuracy: ±0.015% of reading ±2 µA
Environmental
Operating Temperature: -10 to 55°C (14 to 131ºF)
Storage Temperature: -20 to 70°C (-4 to 158ºF)
Power Requirement: 9 Vdc
Battery: One 9 V (included)
AC Adaptor: Optional
Mechanical Dimensions (Without Boot): 144.7 H x 80 W x 3.63 mm D (5.7 x 3.15 x 1.43')
Weight: 340 g (12 oz)