AM-Series
The AM-20 is a highly versatile, solid-state analog meter capable of a variety of user programmable display modes. It is designed to meet the requirement in many applications for a rugged, high input impedance meter that has instantaneous response and is immune to the vibration, sticking and overshoot problems associated with needle-type meters.
The meter's display consists of 20 LED segments individually driven by 20 comparators divided into a left side set and a right side set of ten comparators each.
The user can select and adjust the three internal reference voltages that are applied respectively, to the left side of the left comparator set, the center point where the two comparator sets are joined in series and the right side of the right comparator set.
The meter's circuitry detects when the input signal corresponds to the voltage at any one of the 20 points along the two comparator divider networks with a step accuracy of better than 0.1%. The meter can be adjusted so that both comparator sets have an equal reference voltage across them which will produce a linear full scale display, or if required, they can have a different reference voltage which will enable each half of the meter's display to have a different scale or sensitivity.
The AM-20 is shipped in a standard Slim Bezel case. The Slim Bezel case is compatible with the CM, SM, PM, & SP Series of meters. The AM-20 can be ordered in End Mount cases for twin mounting or combinations of multiple center mount cases and two end mount cases for stack mounting.
Input Configuration:.......Single-ended
Input Impedance:............Exceeds 20M on 2V range; 10M on all other ranges.
Full Scale Ranges:.........2VDC (Standard)
20VDC
200VDC
1200VDC (Maximum Input Signal) All ranges except 1200VDC are field adjustable from 20% to 120% of the basic full scale range value.
A/D Converter:................Flash Converter
Accuracy:.........................0.5% of Full Scale
Temperature Coefficient:...150PPM/ C on 2V range; 200PPM/ C on all other ranges
Bar or Dot Mode Voltmeter
VC1
Warm Up Time:...............Instantly to specified accuracy
Conversion Rate:.............Instantaneous Flash Converter
Display:.............................0.15" Segment height; 20 LED's
Over-range Indication:....All bars flash
Power Supply:..................5V DC @ 280mA
Operating Temperature:...10 C to +60 C
Storage Temperature:......-20 C to +70 C
Relative Humidity:...........95% non condensing
Case Dimensions:..........Bezel 2.76 x 1.17 (69.75 x 29.7mm) Depth behind Bezel 3.32(84mm) plus 0.68 (17.27mm) for connector.
Weight:..............................90.72 gms (3.2 oz)
136.1 gms (4.8 oz) when packed
AM-30...........Red 30 Seg. Bargraph, 0.05/0.1/0.2/1/5/10VDC/4-20mA AM-30R1...........Red 30 Seg. Bargraph, 1 VDC std w/one 2 A/120 VAC relay
AM-30R2..........Red 30 Seg. Bargraph, 1 VDC std w/two 2 A/120 VAC relays
Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.