Herpstat ND User’s Manual
www.spyderrobotics.com
Thank you for choosing the Herpstat ND digital proportional thermostat. This product offers the
following features:
•
Proportional heating constantly monitors and adjusts amount of heat necessary to maintain a target
temperature (Usable range from 50˚F to 140˚F or 10˚C to 60˚C). Can also be used in non-
proportional (on / off ) mode .
•
Sensor Matching allows the user to digitally calibrate the sensor output to match other equipment.
•
Auto Power Matching constantly adjusts the power output curve to match the enclosures efficiency.
•
Coil Warming feature for enclosures using heating coils to increase accuracy.
•
Night Drop feature built in with real time clock. Also able to completely turn off output during night
cycle.
•
Cooling function allows control of basic cooling devices.
•
High / Low temperature tracking helps monitor heating system and enclosure efficiency.
•
Individually selectable High / Low temperature threshold alarms.
•
Precision sensor with internal resolution of .1125 ˚F and is accurate to ± .9 ˚F
•
Display and setting in tenths of a degree.
•
Alarm Clock feature great for daily reminders.
•
All settings are retained in memory even if power is lost.
•
Power Outage detection / tracking.
•
Temperature can be set / displayed in Fahrenheit or Celsius.
•
Easy to read backlit LCD display.
•
Removable sensor for easy replacement if necessary.
•
Resettable fuse never requires replacement.
•
Audible alarm system
•
Internal error detection shuts off heat if sensor fails or is disconnected.
•
600 Watt (400 Watt on 240V models) rating sufficient for most incubators, rack systems, enclosures,
and vivariums.
•
1 year limited warranty
Hardware Installation
WARNING – FIRE OR ELECTRICAL SHOCK MAY RESULT FROM MISUSE. For INDOOR USE ONLY!
1.
Insert the connector on the temperature probe into the jack on the top left side of the Herpstat ND.
2.
Attach the Herpstat ND power plug to a standard wall outlet.
3.
Attach heating device to any of the three outlets on the Herpstat ND. These devices may include heat
tape, heat coils, mats or other resistive load heating devices. Not recommended for use with rock
heating devices or other devices that come in direct contact with the animal. In cooling mode the
outlets can be used for emergency fans.
Do not exceed 600 Watts (400 Watt on 240V models).
Configure Menu
Adjustments: Display Type, Mode, Coil Warmer, Power Matching, Sensor Matching,
NiteDrop Start Time, NightDrop End Time, SetClock, Alarm Clock
When first powered on the Herpstat ND will display the temperature probe status. To enter the Configure Menu
press the + Menu button (this menu only is available from the probe status screen. Use the – Display button to
navigate to it if necessary). The display will show two options:
+ Setup
- Config
Press the - button to enter the Configure Menu. While in the Configure Menu the Herpstat ND will toggle to the
next option after 5 seconds of inactivity and will return to normal operation once all options have been displayed.
While in the Configure Menu the output is disabled.
Display Type
Options: Celsius/Fahrenheit
The default setting is to display temperature in Fahrenheit. After changing display modes the target temperature,
night drop amount, temperature thresholds, and the sensor matching setting will be reset to the default setting.
Mode
Options: Proportional / Non-Proportional / Cooling
The default setting is for Proportional. Proportional mode varies the power output to the heating device as
necessary to maintain the target temperature. Non-proportional works as a standard ON/OFF style thermostat.
Cooling function allows the attachment of emergency fans and functions as a non-proportional output.
Coil Warmer
Options: ON / OFF
This option is used for incubators that have a coil heating element and is only available in proportional mode. In
testing one of the biggest problems with coil heat elements is the startup time it takes to warm the coil during
regulation. Turning this feature on will keep a small amount of power applied to the coil for a few tenths of a
degree over the target temperature. This limited amount of power usually is not enough to raise the temperature
of the environment but keeps the coil warm so that it can regulate faster once the temperature drops.
Power Matching
Options: Normal / High1 / High 2 / High 3 / Low1 / Low2 / Low 3 / Auto
This option is only available if the output is set to Proportional Mode. The default setting is Auto. This mode
allows you to adjust the power curve of the Herpstat ND to match the enclosures efficiency and better maintain
the target temperature. Auto will adjust the power curve automatically.
Sensor Matching
This option allows users to match the Herpstat ND to other temperature sensing equipment. Use the + and –
buttons to adjust the offset.
Note: The Herpstat ND sensor is very accurate in its default setting. Modifications in this menu are not typically
necessary.
NiteDrop Start Time
This is the time the day cycle will end and the night time cycle will begin.
NiteDrop End Time
This is the time the night cycle will end and the day cycle will begin.
SetClock
Adjusts the internal clock’s time.
Alarm Clock
The alarm clock feature allows the Herpstat ND to give an audible beep sequence just like a standard alarm clock.
Pushing either button will stop the alarm.
