ACDC-620T Amprobe, ACDC-620T Datasheet - Page 59
![DMM CLAMP-ON TRMS](/photos/39/35/393571/acdc-620tm_sml.jpg)
ACDC-620T
Manufacturer Part Number
ACDC-620T
Description
DMM CLAMP-ON TRMS
Manufacturer
Amprobe
Type
Digital (DMM)r
Datasheet
1.ACDC-620T.pdf
(65 pages)
Specifications of ACDC-620T
Includes
Battery, Case, Test Leads
Style
Clamp
Display Digits
4
Display Type
LCD, Bar Graph
Display Count
4000
Function
Voltage, Current, Resistance, Capacitance, Temperature
Functions, Extra
Continuity, Diode Test
Features
Auto Off, Hold, Min/Max/Ave, Sleep
Ranging
Auto/Manual
Response
True RMS
Frequency
45 Hz to 65 Hz
Maximum Ac Current
1 KA
True Rms
Yes
Voltage
400 V/100 V
Lead Free Status / RoHS Status
Contains lead / RoHS compliant by exemption
Other names
2730822
compressed. As it is compressed, the gas temperature rises above the surrounding
air temperature. The hot gas dissipates its heat in the condenser, becoming liquid
once again, before returning to the expansion value.
In large systems the temperature and pressure are closely monitored to ensure long
life and minimum energy usage. In small systems, like a home refrigerator, tempera-
ture is often measured as a troubleshooting aid. Careful temperature measurement
at different points in the system can pinpoint trouble spots. Some of critical tempera-
tures are discussed below.
c
Evaporator Temperature
which is related directly to the evaporator pressure. The evaporator temperature
should be lower than the desired cooling temperature.
Evaporator Superheat
refrigerant should have become gas with s temperature slightly warmer than the
evaporating temperature. The amount that the gas temperature exceeds its boiling
point is called superheat. Superheat is a sensitive indicator of evaporator efficiency.
The superheat gas temperature is usually taken at the expansion valve's sensing
bulb. Aproper superheat reading, ensures that all liquid has boiled.
By the time the refrigerant reaches the last few turns of the evaporator coils, all the
Once outside, the gas enters the compressor on the low-pressure side and is
The entire mid-section of the evaporator is at the refrigerant's boiling temperature,
Important Temperature Measurements
58