Programmable Stimulator Module PSM

Combination of stimulator and measurement system in one
Up to 8 channels in one main frame
For applications with tissue baths

This programmable stimulator module is intended for the stimulation of isolated tissue, with operation from PC computer.
An appropriate stimulation program is available. The adjustments are made from the PC and transferred to the PSM.
The PSM is ideally suitable for computer-controlled tissue bath setups, e.g. for automatic refractory period determination.
Up to 8 PSM modules can be mounted inside a PLUGSYS housing.

The Programmable Stimulator Module PSM is a square-wave single-channel stimulator with isolated constant-current output for the PLUGSYS system. It has been developed specially for stimulating isolated tissue in physiological and pharmacological research. The stimulator is operated through software from a PC. All the settings are performed through the control program STIMULUS or through HSE-HA Software ACAD or ISOHEART. The system features interactive operation, i.e. all inputs are set at a special user level with window menus. The instrument settings are stored inside the computer on disk or hard disk and can at any time be loaded into the stimulator module using the control program. With automated experimental setups the stimulator can be controlled from evaluation HSE-HA software. For example, in automatically evaluating the refractory period of an isolated guinea-pig atrium, each stimulation cycle is followed by recalculation of the interval between the first and second stimulus of the twin stimulation, and the appropriate changes are then made to the settings of the stimulator module. The unit cannot be operated by itself; it requires at least the system components listed below.

Technical data:

Construction Programmable Stimulator Module PSM designed as module of HSE-HA PLUGSYS measuring system; occupies one slot unit

Hardware Required Pentium computer, at least 500 MHz; HSE-HA PLUGSYS basic system case, Type 603; HSE-HA data acquisition hardware, PLUGSYS version; DIM-D Digital Bus Link for DIM

Software Required Microsoft WINDOWS 2000/XP/NT; HSE-HA Stimulator Control Program Stimulus; HSE-HA software ACAD, ISOHEART, NEURODYN or EPES with according Software module

Operating Modes Free-running (continuous stimulation); Trains; hardware-triggered through control signal; software-triggered through control command; single or twin stimulation; output current polarity fixed or alternating (automatic change-over after each stimulation cycle)

Basic Rhythm R Continuously adjustable between 100 msec and 10 sec

Delay D Spacing between stimulus 1 and stimulus 2 adjustable between 1 msec and 1 sec, or 0 for no twin stimulation

Width W Stimulus duration adjustable between 0.5 msec and 200 msec

Output O Output can be programmed from 1 mA to 25 mA or from 10 mA to 250 mA (manual change of current range)

Power Supply
+ 5 V/700 mA and + 24 V/1 A through connector from PLUGSYS system bus

Note: In case of using more than one PSM in the basic system case, an additional power supply must be installed (option 5, 24 V DC, 100 VA).A maximum of 4 PSM modules can be installed (power consumption 100 VA).

Dimensions, H x W x D 128.7 x 20.2 x 220 mm (5.1 x 0.8 x 8.7 in) [1 PLUGSYS slot unit ]

Weight 0.35 kg (0.8 lbs)

HUGO SACHS ELEKTRONIK-HARVARD APPARATUS GmbH
Gruenstrasse 1 · D-79232 March-Hugstetten · GERMANY
Phone: +49 (0) 76 65 - 92 00-0 · Fax: +49 (0) 76 65 - 92 00-90

Construction	Programmable Stimulator Module PSM designed as module of HSE-HA PLUGSYS measuring system; occupies one slot unit
Hardware Required	Pentium computer, at least 500 MHz; HSE-HA PLUGSYS basic system case, Type 603; HSE-HA data acquisition hardware, PLUGSYS version; DIM-D Digital Bus Link for DIM
Software Required	Microsoft WINDOWS 2000/XP/NT; HSE-HA Stimulator Control Program Stimulus; HSE-HA software ACAD, ISOHEART, NEURODYN or EPES with according Software module
Operating Modes	Free-running (continuous stimulation); Trains; hardware-triggered through control signal; software-triggered through control command; single or twin stimulation; output current polarity fixed or alternating (automatic change-over after each stimulation cycle)
Basic Rhythm R	Continuously adjustable between 100 msec and 10 sec
Delay D	Spacing between stimulus 1 and stimulus 2 adjustable between 1 msec and 1 sec, or 0 for no twin stimulation
Width W	Stimulus duration adjustable between 0.5 msec and 200 msec
Output O	Output can be programmed from 1 mA to 25 mA or from 10 mA to 250 mA (manual change of current range)
Power Supply	+ 5 V/700 mA and + 24 V/1 A through connector from PLUGSYS system bus Note: In case of using more than one PSM in the basic system case, an additional power supply must be installed (option 5, 24 V DC, 100 VA).A maximum of 4 PSM modules can be installed (power consumption 100 VA).
Dimensions, H x W x D	128.7 x 20.2 x 220 mm (5.1 x 0.8 x 8.7 in) [1 PLUGSYS slot unit ]
Weight	0.35 kg (0.8 lbs)