for 500T Series Manual
The Model 500T is designed
for a variety of temperature measuring applications. Excellent accuracy
and small size combine to make it the ideal choice for most industrial
The 500T features a unique
0.1° or 1° automatic resolution. For temperature measurements below
1000°F, the instrument displays to a 0.1° resolution. With a
measurement more than 1000°F, the instrument automatically switches to
a 1° resolution. Thermocouple types R, S, and B only display in 1°
increments. For any applications where a 1° resolution is desired for
everything, the unit can be set to display only 1° increments
throughout its measuring range.
For ease of installation,
each instrument is supplied in a standard 1/8" DIN 1.9" x
3.8" (4.8cm x 9.6cm) plastic case and has rear-accessible universal
screw terminals. Large LEDs make temperature readings easy to read.
Power is derived from 115 or 230VAC. Power is selectable via an internal
Select among nine
temperature sensors of thermocouple types, J, K, T, E, R, S, and B or
3-wire, Platinum RTDs, either .00385 or .00392 alpha. Each of these nine
are selected via a miniature rotary switch located directly behind the
snap-off front lens. No calibration is required to switch between
thermocouple types. Another miniature DIP switch, also behind the lens,
selects between F or C display.
Order Model 500T-10 (set for 115VAC); 500T-20 (set for 230VAC).
Option. The alarm option provides a single or dual limit
setpoint that can be set to any point, + or -, within the 500T's
measuring range. The user digitally selects the setpoint with two
buttons located on the front panel.
Selection of Hi or Lo
(single) alarm or Hi and Lo (dual) alarms is set via a jump-jack
located in the option card. Once the setpoint is set, it may be reviewed
for its actual value by pressing the View button. A front panel LED
illuminates red (single alarm) or red/yellow (dual alarm) when the alarm
The Alarm Setpoint option
card also includes one Form C, 0.5A relay (single alarm) or two Form C,
0.5A relays (dual alarm) for hook-up to external lamps, buzzers, or
on/off control elements. Relay terminals are accessible at the rear of
the instrument and provide hook-up for Normally Open or Normally Closed
Order Option -03 for single alarm and Option -04 for dual alarm.
Option. The cost of measuring multiple temperature sensors can
be cut using the 500T's ability to switch between up to six sensor
inputs with its multi-input option. All input types contained in the
500T (thermocouple or RTD) can be switched, but they must all be of the
same type (e.g., type K thermocouple).
A miniature rotary switch,
accessible at the front lens, allows convenient switching between
inputs. Sensor hook-up is a snap-on/off terminal block located at the
rear of the instrument.
Order Option -20.
Accessories. The Rack Adapter Plate permits easy mounting of
Model 500T Indicators in standard 19" (48.3cm) instrument racks.
Four versions are available for mounting 1, 2, 3, or 4 indicators.
Order Accessories -RKS1
for 1 cutout; -RKS2 for 2 cutouts; -RKS3 for 3 cutouts; -RKS4 for 4