18
Automatic Temperature With Voltage Override Operation
Automatic Temperature with Voltage Override Control Mode is active for the
NoMax
®
900 when the Control Mode is set to “Temp/Volt” and the rotary switch
position is set to AUTO. The AUTO LED will also light. When this mode is active, the
control will operate as described for Automatic Temperature Operation as long as the
sensed voltage is in the “non-Voltage Control Range” (below the OPEN VOLT set-
ting and above the CLOSE VOLT setting). Automatic Voltage Override will occur
when the sensed voltage crosses either the OPEN VOLTS or CLOSE VOLTS settings
with the following priority:
The OPEN VOLTS setting has priority over the CLOSE VOLTS setting, the OPEN
TEMP setting and the CLOSE TEMP setting.
The CLOSE VOLTS setting has priority over the OPEN TEMP setting and the
CLOSE TEMP setting.
Automatic Time with Temperature Override Operation
Automatic Time with Temperature Override Control Mode is active when the front
panel rotary switch is set to Auto and the Control Mode is set to “Time/Temp”. The
Auto LED will also light. When this mode is active, the control will operate as described
for Automatic Time Operation as long as the sensed ambient temperature is in the
“non-Temperature Control Range” (sensed temperature between the OPEN TEMP and
CLOSE TEMP set points). Automatic Temperature Override will occur when the
sensed temperature crosses either the OPEN TEMP or CLOSE TEMP setting with the
following priority:
The OPEN TEMP setting has priority over the CLOSE TEMP setting, the CLOSE
TIME setting and the OPEN TIME setting.
The CLOSE TEMP setting has priority over the CLOSE TIME setting and the OPEN
TIME setting.
SPECIFICATIONS
• 16 bit High Performance in-circuit re-programmable Flash Processor
• 16 Character x 1 Line Liquid Crystal Display
• Front Panel Voltage Test points
• Enclosure – NEMA 4x, Dimensions 6”x 8”
• Mounting – 4 Jaw Meter Socket or Direct Pole Mount
• Environmental – -22° to +185° F (-30° to +85°C) 5-95% non-condensing humidity
• Voltage Sensor is True RMS and Transformer Isolated (Galvanic isolation)
• Voltage Input accuracy – +/- 1% Full Scale -22° to +176° F (-30° to +80°C)
• Voltage Input resolution – .15 VRMS internal, .1 VRMS displayed
• Voltage range – 80 to 145 VRMS
• Temperature Sensor accuracy – {+/- 0.9° F (0.5°C)} 32° to +158° F (0° to 70°C),
{+/- 1.8° F (1°C)} 14° to +185°F (-10° to 85°C)
• Temperature Sensor range – -22° to +185° F (-30° to +85°C)
• Motor Relays – Rated 30 Amps, fused 15Amp SloBlo
®
, 15 Second ON duration
• Relay Protection – MOV and Snubbers across contacts
• Control Protection – MOV and Snubbers Line 1 to Neutral, Neutral to Ground,
Line 1 to Ground Fused at 1 amp
Gridco, Inc. v. Varentec, Inc. IPR2017-01135
GRIDCO 1008 - 20/22