Thermo Forma 3911 Operating instructions

Models 3911 and 3913
Environmental Chamber
11 cu. ft. capacity
Operating and Maintenance Manual
Manual No: 7013911 Rev. 15

Model 3911/3913 ___________________________________________________________________________
i
Read This Instruction Manual.
Failure to read, understand and follow the instructions in
this manual may result in damage to the unit, injury to operat-
ing personnel, and poor equipment performance.
CAUTION! All internal adjustments and maintenance must
be performed by qualified service personnel.
Refer to the serial tag on the back of this manual.
The material in this manual is for information purposes only.
The contents and the product it describes are subject to change
without notice. Thermo Forma makes no representations or war-
ranties with respect to this manual. In no event shall Thermo
Forma be held liable for any damages, direct or incidental, aris-
ing out of or related to the use of this manual.
MANUAL NUMBER 7013911
15 20474/IN-3013 3/7/02 Added heatless dryer option 1900139 aks
14 20342/PIP-012 10/3/01 Revised electrical schematics aks
13 19942 6/11/01 Replaced timer 275030 with 410038 aks
12 19935 5/8/01 Updated 3940-71 drawing aks
11 IN-2858 03/12/01 Revised control panel access and revised electrical schematics aks
10 19616 10/18/00 Revised door heater control , schematics aks
-- -- 10/11/00 Rev 6 corrections, SIL3 ON Humidity configs, ItemJ L3 off ccs
9 19187/IN-2816 7/24/00 Added line cord standard ccs
8 18153/IN-2816 6/27/00 Revise specs and electrical schematics “
-- 19207/IN-2827 “ “ ccs
7 -- 6/1/00 Quark format ccs
6 18972/IN-2791 3/6/00 Updated humidity configs, clarified dehumidify indicator operation ccs
-- -- 12/15/99 Added vent caps ccs
REV ECR/ECN DATE DESCRIPTION By
Contains Parts and Assemblies
Susceptible to Damage by
Electrostatic Discharge (ESD)
CAUTION

Model 3911/3913 ________________________________________________________________________________Safety
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Important operating and/or maintenance instructions. Read the accompanying text carefully.
Ce symbole attire l'attention de l'utilisateur sur des instructions importantes de fonctionnement et/ou d'entretien. Il
peut être utilisé seul ou avec d'autres symboles de sécurité. Lire attentivement le texte d'accompagnement.
Wichtige Betriebs- und/oder Wartungshinweise. Lesen Sie den nachfolgenden Text sorgfältig.
Importante instruccions de operacion y/o mantenimiento. Lea el texto acompanante cuidadosamente.
Potential electrical hazards. Only qualified persons should perform procedures associated with this symbol.
Ce symbole attire l'attention de l'utilisateur sur des risques électriques potentiels. Seules des personnes qualifiées
doivent appliquer les instructions et les procédures associées à ce symbole.
Gefahr von Stromschlägen. Nur qualifizierte Personen sollten die Tätigkeiten ausführen, die mit diesem Symbol beze-
ichnet sind.
Potencial de riesgos electricos. Solo personas das capacitadadas deben ejecutar los procedimientos asociadas con este
simbulo.
Equipment being maintained or serviced must be turned off and locked off to prevent possible injury.
Risques potentiels liés à l'énergie. L'équipement en entretien ou en maintenance doit être éteint et mis sous clé pour
éviter des blessures possibles.
Geräte, an denen Wartungs- oder Servicearbeiten durchgeführt werden, müssen abgeschaltet und abgeschlossen wer-
den, um Verletzungen zu vermeiden.
El equipo recibiendo servicio o mantenimiento debe ser apagado y segurado para prevenir danos.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be damaged by elevated
temperatures.
Présence de surface(s) chaude(s) pouvant causer des brûlures sur la peau non protégée, ou sur des matières pouvant
être endommagées par des températures élevées.
Heiße Oberfläche(n) können ungeschützter Haut Verbrennungen zufügen oder Schäden an Materialien verursachen,
die nicht hitzebeständig sind.
Superficias calientes que pueden causar quemaduras a piel sin proteccion o a materiales que pueden estar danados
por elevadas temperaturas.
√ Always use the proper protective equipment (clothing, gloves, goggles, etc.)
√ Always dissipate extreme cold or heat and wear protective clothing.
√ Always follow good hygiene practices.
√ Each individual is responsible for his or her own safety.

Model 3911/3913 ________________________________________________________________________________Service
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Table of Contents
Section 1 - Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1
1.1 Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . .2 - 1
1.2 Visible Loss or Damage . . . . . . . . . . . . . . . . . . . . . .2 - 1
1.3 Responsibility for Shipping Damage . . . . . . . . . . . .2 - 1
Section 2 - Installation and Set-Up . . . . . . . . . . . . . . . . .2 - 1
2.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1
2.2 Water (Humidity System) and Drain Connections . .2 - 1
a. Connecting Water Inlet for Humidity System . . .2 - 1
b. Alternate Water Supply for Humidity System . . .2 - 1
c. Connecting the Drain Line . . . . . . . . . . . . . . . . . .2 - 1
2.3 Remote Data Output . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 2
a. RS-232 Data Output . . . . . . . . . . . . . . . . . . . . . . .2 - 2
b. Remote Alarm Contacts . . . . . . . . . . . . . . . . . . . .2 - 2
2.4 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 2
2.5 Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 3
2.6 Setting the Overtemp Safety Thermostat . . . . . . . . .2 - 3
2.7 Setting the Undertemp Safety Thermostat . . . . . . . .2 - 3
2.8 Preparing the (Optional) CoBex Recorder . . . . . . . .2 - 3
a. Installing the Battery . . . . . . . . . . . . . . . . . . . . . . .2 - 3
b. Changing the Chart Paper . . . . . . . . . . . . . . . . . . .2 - 4
c. Changing the Pen . . . . . . . . . . . . . . . . . . . . . . . . .2 - 4
d. Calibrating the Chart Recorder . . . . . . . . . . . . . . .2 - 4
2.9 Offset Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 4
2.10 Honeywell Recorder (optional) . . . . . . . . . . . . . . . .2 - 5
2.11 Controller Configuration . . . . . . . . . . . . . . . . . . . . .2 - 5
Section 3 - Start Up and Operation . . . . . . . . . . . . . . . . .3 - 1
3.1 The Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 1
3.2 Setting the Incubator’s Operating Temperature . . . . .3 - 2
3.3 Setting the Incubator’s Operating Humidity . . . . . . .3 - 2
3.4 Programming the controllers . . . . . . . . . . . . . . . . . . .3 - 2
a. Removing the mechanical lockout . . . . . . . . . . . .3 - 3
b. Removing the Software Lockout . . . . . . . . . . . . .3 - 3
3.5 Air Exchange Ventilator Caps . . . . . . . . . . . . . . . . . .3 - 3
3.6 Heatless dryer (optional) . . . . . . . . . . . . . . . . . . . . . . .3 - 3
Section 4 - Routine Maintenance . . . . . . . . . . . . . . . . . . .4 - 1
4.1 Cleaning the Incubator . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
a. Maintaining the Humidity Steam Generator . . . . . .4 - 1
Section 5 - Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1
5.1 Accessing the Electrical Components . . . . . . . . . . . .5 - 1
5.2 Replacing the Over/Undertemp Probe & Thermostat 5 - 1
5.3 Replacing the Humidity/Temperature Sensor . . . . . .5 - 1
5.4 Replacing the Optional Recorder and Probe(s) . . . .5 - 1
5.5 Setting the Door Heater Control . . . . . . . . . . . . . . . .5 - 2
5.6 Cleaning and Adjusting Humidity Steam Generator . .5 - 2
a. Checking the Steam Generator Safety Thermostat
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 1
Section 6 - Specifications . . . . . . . . . . . . . . . . . . . . . . . . .6 - 1
Section 7 - Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 1
Section 8 - Refrigeration Schematic . . . . . . . . . . . . . . . . .8 - 1
Section 9 - Electrical Schematics . . . . . . . . . . . . . . . . . . .9 - 1
Model 3911/3913 _____________________________________________________________________________ Contents
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