Unit Operation Library

With the HiTec Zang unit operation library you have a tool with which you can respond quickly and flexibly to continuous new demands. The progress program for a process is made up of standard components. Thus, even a synthesis of high complexity can be programmed in a minimum of time.

The elements of the unit operation library are written in the self-documenting language HiText™. Therefore, any individual adjustments at will can be made by modifying the control program. Similarly, the dialogue forms can be edited using a comfortable Designer where necessary.


If required, our application developers can create further basic operations, according to your specifications.

The unit operations are available individually or as a library.

Product code Description
SL-GOPBIB HiTec Unit Operation Library for HiBatch™
- Pressure (control of a pressure regulation unit with a set point ramp)
- Pressure_keeping (simple pressure control)
- Vacuum_keeping (vacuum control)
- Control_program (Starting or execution of a control program)
- SoliDos™ (solid matter dosing with SoliDos™)
- pH_control (pH control for alkaline and/or acid dosing)
- Inert_produce (generation of an inert atmosphere through repeated drawing of vacuum/inerting)
- Filling (metered addition without regulator)
- Distillation with sheath temperature control
- Weigh_out (manual weighing with output in a report)
- Inerting (introduction of inert gas)
- Reflux_dist (waiting for set point temperature and initialised time)
- Boiling_point (detection of boiling points for subsequent distillation)
- Vacuum (program for the running of vacuum ramps)
- Repetition (determines the number of runs of a recipe cycle)
- Wait_condition (wait until a freely defined condition is met)
- Wait_user (wait for operator acknowledgement)
- as well as all unit operation of the options SL-GOPBIBL
SL-GOPBIBL HiTec Unit Operation Library, light version, for HiBatch™
- Surge_doser (fastest possible gravimetric dosing of a given amount)
- Amount_doser (gravimetric dosing of a given amount in a given time)
- Rate_doser (gravimetric dosing at a given rate during a given time)
- Conti_doser (continuous gravimetric dosing at a constant dosing rate)
- Temperature_keeping (temperature control)
-Dosing (gravimetric dosing)
- Dosing_gravi (gravimetric dosing from a load cell, without refilling)
- Endoperation (final step in recipes with a possibility for export)
- Stirring (output of a set point speed to the stirrer and torque display)
- Startoperation (starting step of recipe)
- Tare_Gravi (taring of a load cell)
- Tare_scale (taring of a balance)
- Tempering (program for driving heating and cooling ramps)
- Value_output (output of a new value to a data point)
- Waiting (wait for a set waiting time)
- Wait_until (wait until a set time)
Product code Unit Operation Description
SL-GOPBEFUEL Filling Metered addition without regulator. The pump power is automatically shut down at the end of the dosing in order to arrive as closely as possible to the desired quantity.
SL-GOPDEST Distillation Distillation using jacket temperature control The set point for the jacket temperature is given by the current reactor interior temperature plus the set point difference between the interior and jacket temperature. The set point difference between the interior and jacket temperature is given by the operator. A small set point difference means a saving on distillation! The reflux separator ratio can be controlled, depending on the head temperature.
SL-GOPDOSI Dosing Gravimetric dosing of one set of balance with a set point ramp and controller
SL-GOPDOSIGRAVI1 Dosing_gravi Gravimetric dosing from a load cell (e. g. HiTec Zang GraviDos®) with a set point ramp and controller, Without refilling of the tank.
SL-GOPDPWERT Value_output Output of a new value to a data point.
SL-GOPDRUCK Pressure The program controls a pressure regulation unit. The set point is led via a ramp to the final value.
SL-GOPDRUCKHALTEN Pressure_keeping The program controls a pressure regulation unit. The given set point is directly output to a regulator. Stepping up is possible depending on time or through structural transition (e.g. if a parallel path is completed).
SL-GOPEINWIEG Weigh_out A substance is weighed manually". The weighed quantity is recorded in the process report."
SL-GOPEND Endoperation This operation is used as the final step in recipes. The possibility exists to automatically start an arranged export procedure from this recipe step. As time period for the export the time from the start of the recipe to the start of the recipe to the start of the export has to be set. A condition for the functioning of the export is the utilisation of the initial operation out of the unit operation library as well as the full version of the data export module (SL-EXPORT).
SL-GOPGRAVITARI Tare_Gravi Program for taring a load cell (z. B. HiTec Zang GraviDos®).
SL-GOPINERT Inerting The program is used to open a binary and proportional inerting valve It can optionally be opened for a defined time or as long as a parallel path is running
SL-GOPINERTHERST Inert_produce Generation of an inert atmosphere by n-fold turning vacuum drawing / inerting to normal pressure using a vacuum control unit
SL-GOPKONTIDOS Conti_doser Continuous gravimetric dosing at a constant dosing rate.
SL-GOPMENGENDOS Amount_doser Gravimetric dosing of a given amount in a given time.
SL-GOPPHREGELUNG pH_control The program achieves pH value control for alkaline and/or acidic dosing via a pH value regulator. Stepping up is possible after reaching a pH value tolerance limit or through structural transition (e.g. if a parallel path is completed).
SL-GOPPROGRAMM Control program Starting or execution of a control program.
SL-GOPRATENDOS Rate_doser Gravimetric dosing at a given rate during a given time.
SL-GOPRUECKDEST Reflux_dist The program initially waits until the initialised set point temperature is reached during distillation and then waits for any desired time
SL-GOPRUEHR Stirring The program is used for the output of a set point speed to a stirrer. Stirring can be optionally carried for a given time or as long as a parallel path is running
SL-GOPSIEDEP Boiling_point Detection of boiling points based on the minimum increase in the interior temperature given by the operator.
SL-GOPSOLIDOS Dosing solid matter dosing with SoliDos™.
SL-GOPSTART Startoperation Starting step for a recipe with the possibility of undertaking initialisation and settings.
SL-GOPSTOSSDOS Surge_doser Fastest possible gravimetric dosing of a given amount
SL-GOPTEMP Tempering Program for driving heating and cooling ramps
SL-GOPTEMPHALTEN Temp_keeping The program controls a temperature regulation unit. The predetermined set point is output directly to the thermostat for inside temperature control at the controller and jacket temperature control. Stepping up is possible depending on time or through structural transition (e.g. if a parallel path is completed).
SL-GOPVAKHALTEN Vacuum_keeping The program controls a vacuum regulation unit. The given set point is directly output to a regulator. Stepping up is possible depending on time or through structural transition (e.g. if a parallel path is completed).
SL-GOPVAKU Vacuum The program controls a vacuum regulation unit. The set point is led via a ramp to the desired final value.
SL-GOPWAAGETARI Tare_scale Program for taring a scale
SL-GOPWARTET Wait_until The program waits until a time given by the user is reached.
SL-GOPWARTEZ Waiting Program for determining a freely selectable waiting time.
SL-GOPWBEDIENER Wait_user The program waits until the operator presses OK"."
SL-GOPWBEDINGUNG Wait_condition The program waits until a condition given by the user is met.
SL-GOPWIEDERH Repetition Determines the number of runs of a recipe cycle: As long as the counter" is smaller than the number of repetitions, the right output of the element is used, otherwise the lower output is used."

The controller modules (SF-PIDx) are required for the complete functionality of the following Unit Operations:

  • SL-GOPDOSI
  • SL-GOPDOSIGRAVI1
  • SL-GOPDRUCK
  • SL-GOPDRUCKHALTEN
  • SL-GOPKONTIDOS
  • SL-GOPMENGENDOS
  • SL-GOPPHREGELUNG
  • SL-GOPRATENDOS
  • SL-GOPREKTIF
  • SL-GOPSTOSSDOS
  • SL-GOPTEMPHALTEN
  • SL-GOPVAKHALTEN
  • SL-GOPVAKU

The controller modules (SF-PIDx) are recommended for the complete functionality of the following unit operations:

  • SL-GOPDEST
  • SL-GOPSIEDEP
  • SL-GOPTEMP